updated docs to fix inconsistent display of code elements, update scaffolding to fix padding issue on fluid containers, add placeholder hero unit in patterns for future use, continue to refactor some rgba to hex values

lib/scaffolding.less

@@ -51,7 +51,7 @@ html, body {
   background-color: #fff;
 }
 body {
-  margin: 0;
+  margin: 60px 0 0; // Add margin to the top of the page for the topbar
   #font > .sans-serif(normal,@basefont,@baseline);
   color: @gray;
   text-rendering: optimizeLegibility;
@@ -65,7 +65,7 @@ div.container {
 
 // Fluid layouts (left aligned, with sidebar, min- & max-width content)
 div.container-fluid {
-  padding: 20px;
+  padding: 0 20px;
   .clearfix();
   div.sidebar {
     float: left;